516809833 has 4 divisors (see below), whose sum is σ = 517001940. Its totient is φ = 516617728.

The previous prime is 516809807. The next prime is 516809849. The reversal of 516809833 is 338908615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338908615 = 5 ⋅67781723.

It can be written as a sum of positive squares in 2 ways, for example, as 228251664 + 288558169 = 15108^2 + 16987^2 .

It is a cyclic number.

It is not a de Polignac number, because 516809833 - 2⁵ = 516809801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 516809833.

It is not an unprimeable number, because it can be changed into a prime (516809233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91960 + ... + 97417.

It is an arithmetic number, because the mean of its divisors is an integer number (129250485).

Almost surely, 2^516809833 is an apocalyptic number.

It is an amenable number.

516809833 is a deficient number, since it is larger than the sum of its proper divisors (192107).

516809833 is a wasteful number, since it uses less digits than its factorization.

516809833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192106.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 516809833 is about 22733.4518496422. The cubic root of 516809833 is about 802.4973174990.

The spelling of 516809833 in words is "five hundred sixteen million, eight hundred nine thousand, eight hundred thirty-three".